Vanity top sizes: 25"x19"/22", 31"x19"/22", 37"x19" /22", 49"x19"/22", 61"x19"/22"(single or double sinks) Thickness in 3/4" or 1 1/2" or others if specially. The vanitytop with one back splash or side splash are available. Thickness tolerance: +/- 1mm Polishing degree: Above 90-95. 6.Packing 1). for thin tiles(10-13mm thickness) every4-10PCS in one polyfoam boxes and then packed into strong wooden cases. 2). for tiles (20mm above thickness) packed in strong wooden cases covered with transparent plastic film to prevent rain and dust. 3). for slabs packed in strong wooden crates covered with transparent plastic film to prevent rain and dust.